China is massively expanding its weather-modification program, saying it will be able to cover half the country in artificial rain and snow by 20

"Cloud seeding" involves spraying chemicals like silver iodide or liquid nitrogen into clouds, where water droplets condense and fall.

China's government has announced that it is expanding its weather-control project, which creates artificial rain and snow, by fivefold.
The State Council said Tuesday the project will soon cover 2.1 million square miles and be ready by 2025. That is about 56% of China's entire surface area.

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